from django.conf import settings
from django.contrib.auth.models import AbstractUser
from django.db import models
from itsdangerous import TimedJSONWebSignatureSerializer as TJWSSerializer, BadData

from meiduo_mall.utils.models import BaseModel
from . import constants


# 用户模型类
class User(AbstractUser):
    """用户模型类"""
    mobile = models.CharField(max_length=11, unique=True, verbose_name='手机号')
    email_active = models.BooleanField(default=False, verbose_name='邮箱验证状态')
    default_address = models.ForeignKey('Address', related_name='users', null=True, blank=True, on_delete=models.SET_NULL, verbose_name='默认地址')

    print(mobile)
    class Meta:
        db_table = 'tb_users'
        verbose_name = '用户'
        verbose_name_plural = verbose_name

    # def generate_send_sms_code_token(self):
    #     """
    #     生成发送短信验证码的token
    #     """
    #     serializer = TJWSSerializer(settings.SECRET_KEY, expires_in=constants.SEND_SMS_TOKEN_EXPIRES)
    #     data = {'mobile': self.mobile}
    #     token = serializer.dumps(data)
    #     return token.decode()
    #
    # @staticmethod
    # def check_send_sms_code_token(token):
    #     """
    #     检验发送短信验证码的token
    #     """
    #     serializer = TJWSSerializer(settings.SECRET_KEY, expires_in=constants.SEND_SMS_TOKEN_EXPIRES)
    #     try:
    #         data = serializer.loads(token)
    #     except BadData:
    #         return None
    #     else:
    #         return data.get('mobile')
    #
    # def generate_set_password_token(self):
    #     """
    #     生成修改密码的token
    #     """
    #     serializer = TJWSSerializer(settings.SECRET_KEY, expires_in=constants.SET_PASSWORD_TOKEN_EXPIRES)
    #     data = {'user_id': self.id}
    #     token = serializer.dumps(data)
    #     return token.decode()
    #
    # @staticmethod
    # def check_set_password_token(token, user_id):
    #     """
    #     检验设置密码的token
    #     """
    #     serializer = TJWSSerializer(settings.SECRET_KEY, expires_in=constants.SET_PASSWORD_TOKEN_EXPIRES)
    #     try:
    #         data = serializer.loads(token)
    #     except BadData:
    #         return False
    #     else:
    #         if user_id != str(data.get('user_id')):
    #             return False
    #         else:
    #             return True

    # """生成验证邮箱的url"""
    def generate_verify_email_url(self):
        """生成验证邮箱的url"""
        serializer = TJWSSerializer(settings.SECRET_KEY, expires_in=constants.VERIFY_EMAIL_TOKEN_EXPIRES)
        data = {
            'user_id': self.id,
            'email': self.email
        }
        token = serializer.dumps(data).decode()
        verify_url = 'http://www.meiduo.site:8080/success_verify_email.html?token=' + token
        return verify_url

    @staticmethod
    def check_verify_email_token(token):
        """检查验证邮箱的token"""
        serializer = TJWSSerializer(settings.SECRET_KEY, expires_in=constants.VERIFY_EMAIL_TOKEN_EXPIRES)
        try:
            data = serializer.loads(token)
        except BadData:
            return None
        else:
            email = data.get('email')
            user_id = data.get('user_id')
            try:
                user = User.objects.get(id=user_id, email=email)
            except User.DoesNotExist:
                return None
            else:
                return user
        # else:
        #     if user_id != str(data.get('user_id')):
        #         return None
        #     else:
        #         return True


class Address(BaseModel):
    """
    用户地址
    """
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='addresses', verbose_name='用户')
    title = models.CharField(max_length=20, verbose_name='地址名称')
    receiver = models.CharField(max_length=20, verbose_name='收货人')
    province = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='province_addresses', verbose_name='省')
    city = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='city_addresses', verbose_name='市')
    district = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='district_addresses', verbose_name='区')
    place = models.CharField(max_length=50, verbose_name='地址')
    mobile = models.CharField(max_length=11, verbose_name='手机')
    tel = models.CharField(max_length=20, null=True, blank=True, default='', verbose_name='固定电话')
    email = models.CharField(max_length=30, null=True, blank=True, default='', verbose_name='电子邮箱')
    is_deleted = models.BooleanField(default=False, verbose_name='逻辑删除')

    class Meta:
        db_table = 'tb_address'
        verbose_name = '用户地址'
        verbose_name_plural = verbose_name
        ordering = ['-update_time']














